Frame for log-loaders.



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PATBNTED JUNE 25, 1907. J. R. MUGIFFERT. FRAME PORy LOG LOADERS.APPLIOATION FILM) DB0. so'. 1904. RENBWBD oo'r. 4, 190s.

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` PATENTED JUNE-25, 1907. J. R. MOGIPPBRT.. FRAME PoR LOG LoADERs.APPLICATION FILED DEO. 30, 1904. RBNEWED 00T. 4, 1906.

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UNITED STATES PATENT OFFICE.

JOHN R. MCGIFFERT, OF DULUTH, MINNESOTA, ASSIGNOR TO CLYDE IRON WORKS,OF DULUTH, MINNESOTA, A CORPORATION OF MINNESOTA.

FRAME FOR LOG-LOADERS.

Specification of Letters Patent.

Patented June 25, 1907.

To all whom, it may concern.-

Be it known that I, JOHN R. MCGIFFERT, a citizen of the United States,resident of Duluth, county of St. Louis, State of Minnesota, haveinvented a new and useful Improvement in Frames for Log-Loaders, ofwhich the following is a specification, the principle of the inventionbeing herein explained and the best mode in which I have contemplatedapplying that principle so as to distinguish 1t from other inventions.

My invention relates to frames for logloaders and particularly to framesadapted for use in connection with a type of logloader shown anddescribed in Patent No. 621,043 issued to George W. Decker, March 14,1899.

The object of the invention is to produce a construction which will beeconomical and efficient.

The said invention consists of means hereinafter fully described andparticularly set forth in the claims.

The annexed drawings and the following description set forth in detailcertain means embodying the invention, such disclosed means constitutingbut one of various mechanical forms in which the principle of theinvention may be used.

In said annexed drawings z--Figure 1 represents a side elevation of alog-loader frame embodying my invention showing the same mounted u ontrucks and also showing a portion of t e hoisting and loading mechanism.Fig. 2 represents an end elevation of same. Fig. 3 represents, upon areduced scale, a side elevation of a loader complete and embodying myimproved frame.

The two lower longitudinal sills A of the said improved frame have theirrespective ends joined transversely by bolsters B, B, each of whichconsists preferably, of three I-beams, as shown in Fig. 1. From the fourcorners of the lower rectangular frame so formed extend four u rightposts C, C each consisting of two I- cams, such osts being directlysupported by the bo sters and suitably secured thereto. Connecting thefront and rear posts and secured upon the inner surfaces of the latterare two parallel channel bars D forming upper sills.

Having their ends resting upon the bars D and extending between thefront and rear posts respectively are two transverse members E eachconsisting preferably, as shown,

of two I-beams. of these members E are two longitudinal I-beams F, Fdisposed u on opposite sides of the vertical central ongitudinal planeofthe machine and at equal distances therefrom, as shown in Fig. 2.Secured to the middle and outer surface of each sill A is an uprightpost C consisting preferably of two channel bars suitably tied together,the upper ends of these posts being secured to the outer surfaces of thelongitudinal upper sills'D. Extending between these posts 1s atransverse I-beam E having its ends secured to the inner surfacesof theposts C. This I-beam E has its lower surface secured to the uppersurfaces of the longitudinal beams F, F. These beams F, F form the deckfor the hoisting and conveying mechanism which is carried thereby, asshown in Fig. 2. Further rigidity is secured by brac- Secured to thebottom4 ing the frame against transverse strains by means of bars Z) l)and e e as shown in Fig. 2 while longer diagonally disposed bars d,joining the outer ends of the upper sills D with approximately thecenter of lower sills A, serve to sustain the latter under the weight ofa car as it passes through the frame on track G.

By virtue of the above-described disposition of beams F, the hoistingand conveying mechanism is carried upon a plane lower than that providedin any frame heretofore constructed, thus lowering the center of gravityof the entire structure which is an obviously desirable feature. Suchlowering is eHected while still preserving the necessary height betweenthe upper and lower portions of the structure so as to allow a car whendrawn up upon the auxiliary track G to propl which is fully describedand set forth in the said above-named patent. The two beams F, F beingplaced upon opposite sides of the central plane before mentioned, itwill be seen that the projecting draw bar of the car will pass into thespace included between said two beams. The height of the lower surfaceof beam E above the track G, G of the frame, Fig. 2, is made justsufficient to allow this draw bar to pass beneath same when the end ofthe car is passingup the inclined portion of the track and about toenter the frame.

As described in said patent the loading machine is provided withmechanism for selfpropulsion consisting of suitable connection IOO IIO

BEST CPY with the hoisting engine in the form of chainssprockets,fgshafts etdgjInithe constructions heretoforejutilizedjjthedrivingjjshaft for propelling theglddevicelhasijof' necessity beencaused to project beyond the verticalljplane coinciding withujjloneyfextremegjside 'ofjthe frame7 and a sprocket-wheelhasbeen attachedthereto Q;Injadsimilar mannerdaucountershaft and sprocket-wheel hasjbeensecured in such projecting mannerhto the lower portion of the frame; sothat when the machine was passing through an obstructive country thesaid sprockets and chains were constantly in danger of becoming damagedor the chain torn from its sprockets by reason of contact withobstructions. It will be noted however, that in my above describedconstruction the driving shaft II, sprocket-wheel H and sprocket chain71, (shown in dotted lines) as well as the countershaft h andsprocketwheel h2 secured thereto may lie as shown, beyond thelongitudinal sills A and D and yetnot lie beyond the lateral verticalplane of the frame7 the upright corner posts C, C forming a guard forprotecting these parts, as gill be readily seen from the inspection ofOther modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the meansherein disclosed, provided the means stated by any one of the followingclaims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my inventionl. In a frame for a log-loader, the combination with a base, of a deckcomprising transverse beams supported above said base, and longitudinalbeams lying beneath said transverse beams and secured to the same.

2. In a frame for a log-loader, the combination with a base, of postsmounted on each side thereof; a longitudinal beam secured to the postsalong each side respectively of said base; transverse beams secured toopposite posts respectively; and intermediate longitudinal beams lyingbeneath said transverse beams and secured to the same.

3. In a frame for a log-loader, the combination with a base, of uprightcorner posts; a longitudinal beam secured to the posts on each siderespectively of said base; transverse beams secured to opposite postsrespectively; and intermediate longitudinal beams lying beneath saidtransverse beams and secured thereto.

4. In a frame for a log-loader, the combination with a base, of uprightcorner posts; a post on each side of said base intermediate of thecorresponding corner posts; a longitudinal beam secured to the postsalong each side respectively of said base; transverse beams secured toopposite posts respectively; and intermediate longitudinal beams lyingbeneath said transverse beams and secured thereto.

5. In a frame for a log-loader, the combination with a base, of uprightcorner posts;

va longitudinal beam secured to the posts on each side respectively ofsaid base; diagonally disposed braces extending from the ends of each ofsaid longitudinal beams to the corresponding side of said base;transverse beams secured to opposite posts respectively; andintermediate longitudinal beams lying beneath said transverse beams andsecured thereto.

6. In a frame for a log-loaderI the combination with a base, of uprightcorner posts; a post on each side of the base intermediate of thecorresponding corner posts; a longitudinal beam secured to the postsalong each side respectively of said base; diagonally disposed bracesextending from the ends of each of said longitudinal beams to thecorresponding side of said base; transverse beams secured to oppositeposts respectively; and intermediate longitudinal beams lying beneathsaid transverse beams and secured thereto.

7. In a frame for a log-loader7 the combination of a base embodying twolongitudinal sills, and a bolster at each end of said sills joining thesame; corner posts mounted upon said base; a longitudinal beam securedto the posts on each side respectively of said base; transverse beamssecured to opposite posts respectively; and intermediate longitudinalbeams lying beneath said transverse beams and secured thereto.

8. In a frame for a log-loader, the combination of a base embodying twolongitudinal sills, and a bolster at each end of said sills joining thesame; upright corner posts mounted upon said base; a post on each sideof the base intermediate of the corresponding corner posts; alongitudinal beam secured to the posts along each side respectively ofsaid base; diagonally disposed braces extending from the ends of each ofsaid longitudinal beams to the corresponding sill; transverse beamssecured to the opposite posts respectively; and intermediatelongitudinal beams lying below said transverse beams and securedthereto.

9. In a log-loader, the combination with a frame comprising a baselposts mounted on each side thereof, two longitudinal beams respectivelysecured to the inside of said posts and a deck supported upon saidlongitudinal beams; of propelling mechanism for said log-loaderincluding a driving shaft transversely mounted on said deck, acountershaft similarly mounted in said base, and

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operative connections between correspondline of said longitudinal beamsand within that of said posts.

10. In' a log-loader7 the combination with a frame comprising a base,posts mounted along each side thereof, two longitudinal beamsrespectively secured to the inside of said posts above said base, and adeck supported upon said longitudinal beams; of propelling mechanism forsaid log-loader including a driving shaft transverselyT mounted on' saiddeck, a counter-shaft similarly mounted in said base7 sprocket wheelsmounted on corresponding ends of said shafts and a sprocket chainconnecting said wheels, the ends of said shafts, said wheels and chai-nall lying without the line of said longitudinal beams and within that ofsaid posts.

11. In a log-loader, the combination with a frame comprising two lowerlongitudinal sills, two bolsters connecting the front and rear ends ofsaid sills transversely7 four corner posts mounted upon said bolsters,two upper lateral longitudinal beams parallel with said sills andrespectively secured to the inside of a front and rear corner post,transverse beams resting upon said upper longitudinal beams, and otherintermediate upper longitudinal beams secured to said transverse beams;of propelling mechanism for said logloader including a driving shafttransversely mounted on said upper beams, a counter-` shaft similarlymounted on said sills, and

operative connections between corresponding ends of said shafts, theends of such shafts and such connections all lying without the line ofsaid longitudinal beams and within that of said posts.

12. In a frame for a log-loader, the combination of two lower laterallongitudinal sills; two holsters connecting the front and rear ends ofsaid sills transversely; four corner posts supported upon said bolsters;two upper lat-eral bars parallel with said sills and secured to theinside of a front and rear corner post; transverse beams resting uponsaid bars andvlocated between said corner posts; tWo oppositely locatedupright posts secured respectively to an upper beam and lower sillintermediate of the corresponding Y corner posts; a transverse beamconnecting such intermediate upright posts; and longitudinal beamssecured to the lower surfaces of the transverse beams and located uponopposite sides of the central vertical longitudinal plane of the frame.

Signed by me this 10th day of December 1904i.

. lJOHN R. MCGIFFERT.

Witnesses ARTHUR W. HUNTER, N. M. NELSON.

